Haemoglobin is the protein that makes red blood corpuscles red and binds easily and reversibly with oxygen. Normal values for haemoglobin are 14−20 g/100 mL of blood in infants, 13−18 g/100 mL in adult male and 12−16 g/100 mL in adult females. Haemoglobin is made up of protein globin bound to the red haem pigment. The globin consists of four polypeptide chains-2 alpha and 2 beta. Foetal haemoglobin does not sickle even in those distined to have sickle cell anaemia, ie, haemoglobin of foetus has higher affinity of oxygen than that an adult.
The haemoglobin of a human foetus
NEET UG 2008 — Zoology Breathing and Exchange of Gases
The haemoglobin of a human foetus
Held on 30 Apr 2008 · Verified 9 Jul 2026.
Options
- A
has a lower affinity for oxygen than that of the adult
- B
its affinity for oxygen is the same as that of an adult
- C
has only 2 protein subunits instead of 4
- D
has a higher affinity for oxygen than that of an adult
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